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ABB SDCS-PU6001 Power Unit  

1. Key Parameters

• Product Model: SDCS-PU6001
• Order Code Reference: Typically paired with ABB ACS880 medium-voltage VFD kits (e.g., ACS880-07-0200A-7, 3ABD00031075) for procurement consistency
• Product Series: ABB ACS880 Medium-Voltage VFD High-Power Conversion Units
• Core Function: Converts DC bus power to adjustable 3-phase AC for high-power motors; integrates IGBT inverter modules for precise frequency/voltage control; provides multi-layer overcurrent/overvoltage/overtemperature protection; ensures efficient power transfer with low harmonic distortion
• Electrical Specifications:

  Parameter	Value	Notes
  Input Type	DC bus (from ACS880 rectifier)	Compatible with ACS880 DC bus architecture
  DC Input Voltage Range	800V DC ~ 1200V DC (nominal: 1000V DC)	Matches ACS880 medium-voltage rectifier output
  AC Output Voltage Range	0~690V AC (line-to-line, 3-phase)	Scalable via VFD control (for 690V motor systems); optional 11kV output via transformer pairing
  AC Output Current	200A (continuous); 300A (peak, 10s)	For 100kW~150kW motor loads (690V system)
  Rated Power	150kW (at 690V AC, 50Hz)	Matches ACS880-07 series VFD power ratings
  Efficiency	≥98.5% (at full load, 50Hz)	Low power loss, reduces heat generation
  Harmonic Distortion	≤3% (THD, at rated load)	Complies with IEC 61000-3-12 (medium-voltage grids)
  Inverter Topology	3-level NPC (Neutral Point Clamped)	Reduces voltage stress on IGBTs; lowers output harmonics
  IGBT Module Rating	1200V / 300A (per IGBT chip)	Industrial-grade IGBTs for high-voltage durability
  Insulation Class	H (temperature rise class B)	Safe operation up to 180℃ winding temperature

• Protection Functions:
  • Overcurrent Protection: Trips at 150% rated current (300A); fast response (<2μs) to short-circuit faults
  • Overvoltage Protection: Clamps at 130% DC bus voltage (1300V DC); prevents IGBT damage from voltage transients
  • Overtemperature Protection: Triggers at 85℃ (heatsink temperature); reduces output current or shuts down if exceeded
  • IGBT Fault Detection: Monitors IGBT junction temperature and gate driver status; isolates faulty modules to avoid cascading failures
  • Undervoltage Protection: Triggers at 70% DC bus voltage (700V DC); prevents unstable inverter operation
• Mechanical & Cooling Specifications:
  • Form Factor: Modular design (compatible with ACS880 medium-voltage VFD cabinet slots)
  • Dimensions (W×H×D): 450mm × 800mm × 300mm (custom fit for ACS880-07 VFD cabinets)
  • Mounting: Cabinet slot-mounted (secures to VFD backplane; no additional hardware)
  • Weight: Approximately 45kg (includes heatsink and IGBT modules)
  • Cooling Method: Forced liquid cooling (compatible with ACS880 integrated liquid cooling system); flow rate: ≥10L/min
  • Protection Rating: IP20 (internal VFD cabinet mounting; protected against finger contact and small objects)
  • LED Indicators (front panel):
    • Power (PWR): Green (unit powered on); Red (DC input fault)
    • Output Status (OUT): Green (AC output normal); Blinking Green (ramping up/down)
    • Temperature (TEMP): Green (heatsink <60℃); Amber (60℃~85℃ warning); Red (>85℃ protection)
    • Fault (FLT): Red (critical fault, e.g., IGBT fault, overcurrent)
• Environmental Ratings:
  • Operating Temperature Range: -10℃~+55℃ (14℉~131℉)
  • Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
  • Humidity Tolerance: ≤90% RH (non-condensing, 40℃; suitable for damp heavy-industry settings)
  • Vibration Resistance: 10~500Hz, 1.0g acceleration (IEC 60068-2-6; no mechanical damage to IGBTs)
  • Shock Resistance: 15g acceleration (11ms duration, IEC 60068-2-27; maintains structural integrity)
• Compliance Standards: IEC 61800-5-1 (adjustable speed drives), EN 61000-6-2 (EMC immunity), UL 1004-1 (high-voltage equipment), CE, RoHS, IEC 60664-1 (insulation coordination)

2. Key Features

• ACS880 Medium-Voltage Exclusivity: Custom-engineered for ABB ACS880-07/08 series medium-voltage VFDs—ensures perfect electrical matching with the VFD’s rectifier, DC bus, and control system; eliminates compatibility risks (e.g., DC bus voltage mismatch, IGBT driver signal latency) common with generic power units.
• 3-Level NPC Inverter Topology: Reduces voltage stress on IGBT modules (to 50% of DC bus voltage) and lowers output harmonic distortion (≤3% THD)—complies with strict grid harmonic standards (IEC 61000-3-12) and minimizes motor insulation damage from high-frequency harmonics.
• High Efficiency & Low Loss: ≥98.5% efficiency at full load minimizes power dissipation, reducing cooling system demands and lowering long-term operating costs—critical for 24/7 heavy-industry applications (e.g., steel mill rolling mills, mining hoists).
• Multi-Layer Protection Mechanisms: Integrates ultra-fast IGBT fault detection (<2μs), overcurrent/overvoltage clamping, and heatsink overtemperature protection—isolates faults to prevent cascading damage to expensive VFD components (e.g., rectifier modules, control boards) and connected motors.
• Forced Liquid Cooling: Optimized liquid cooling system (compatible with ACS880’s integrated coolant loop) efficiently dissipates heat from IGBTs and power components—enables operation in high-temperature environments (+55℃) without performance degradation, avoiding thermal throttling.
• Modular Design: Slot-mounted modular structure simplifies replacement and maintenance—technicians can swap faulty units in ≤30 minutes (with VFD de-energized), reducing unplanned downtime in critical production processes (e.g., chemical reactor cooling pumps).
• High-Voltage Insulation: Class H insulation and 3kVrms isolation between power circuits and control signals prevent ground loops and voltage transients (common in medium-voltage grids)—ensures safe operation and reliable power conversion in electrically noisy heavy-industry settings.

3. Application Fields

• ABB ACS880 Medium-Voltage VFD Systems: Primary application—power conversion for high-power motor drives:
  • Steel & Metals Industry: Drives 100kW~150kW DC or AC motors for hot rolling mill stands (ACS880-07 VFDs); 3-level inverter topology ensures stable motor speed (±0.1% variation) during metal rolling, maintaining uniform strip thickness and reducing product defects.
  • Mining Operations: Powers 120kW~150kW mine hoist motors (ACS880-08 VFDs); peak current capacity (300A) supports heavy load acceleration (e.g., lifting ore-filled buckets), while overtemperature protection withstands underground heat (up to +50℃).
  • Chemical & Petrochemical Plants: Converts power for 100kW~140kW centrifugal compressor motors (ACS880-07 VFDs); low harmonic distortion (≤3% THD) complies with plant grid standards, avoiding interference with sensitive process sensors (e.g., pressure transmitters).
• Power Generation & Infrastructure: Enables reliable operation of critical auxiliary systems:
  • Thermal Power Plants: Drives 110kW~150kW boiler feedwater pump motors (ACS880-07 VFDs); high efficiency (≥98.5%) reduces energy consumption, while fast fault protection prevents pump damage from voltage transients in power plant grids.
  • Renewable Energy (Wind/Solar): Powers 100kW~130kW wind turbine yaw drive motors (ACS880-08 VFDs); vibration resistance (1.0g) withstands turbine mechanical stress, and liquid cooling adapts to outdoor temperature fluctuations (-10℃~+55℃).
• Heavy-Duty Process Machinery: Supports high-load, continuous operation:
  • Cement Manufacturing: Drives 120kW~150kW cement kiln rotation motors (ACS880-07 VFDs); forced liquid cooling dissipates heat from high-load operation (e.g., rotating heavy kiln shells), while overcurrent protection avoids damage from torque spikes during material clogging.
  • Water & Wastewater Treatment: Powers 100kW~120kW large-diameter water pump motors (ACS880-07 VFDs); modular design simplifies maintenance in water treatment plants, reducing downtime for pump repairs.

4. Precautions

• ACS880 Medium-Voltage VFD Exclusivity: Use exclusively with ABB ACS880-07/08 series medium-voltage VFDs (690V~11kV, 100kW~1MW). Never install in low-voltage VFDs (e.g., ACS880-01/04) or non-ABB systems—electrical mismatches (e.g., DC bus voltage, IGBT driver protocol) will destroy the unit and pose severe safety risks.
• High-Voltage Safety (Critical):
  • De-Energize & Discharge: Before any maintenance, disconnect the ACS880 VFD from medium-voltage grid power and discharge the DC bus (wait ≥30 minutes; verify with a calibrated high-voltage tester)—DC bus voltage (up to 1200V) and AC output (up to 690V) pose fatal 电击 risks.
  • PPE Requirements: Always wear arc-rated personal protective equipment (PPE) when working near the unit: Class 2 arc flash suit, insulated gloves (Class 00, 1000V rated), and safety glasses—arc flash from high-voltage faults can cause severe injury.
• Installation & Wiring:
  • Torque Specifications: Tighten DC bus and AC output terminals to ABB-specified torque (35 N·m for M12 bolts); under-tightening causes arcing and terminal melting, while over-tightening damages threads.
  • Coolant Connection: Ensure liquid cooling lines are leak-free and connected to the ACS880’s integrated coolant loop—air bubbles in the coolant line reduce heat dissipation, triggering overtemperature faults; use only ABB-approved coolant (glycol-water mixture, 50/50 ratio).
• Load & Operation Limits:
  • Do Not Overload: Do not exceed 200A continuous current or 300A peak current (10s)—sustained overload damages IGBT modules and voids the warranty; calculate motor power (≤150kW at 690V) to ensure compatibility.
  • Avoid Frequent Starts/Stops: Limit starts/stops to ≤10 per hour—frequent current surges shorten IGBT lifespan; use ACS880’s "soft start" function to reduce peak current during startup.
• Maintenance & Cooling System Care:
  • Coolant Inspection: Check coolant level and quality quarterly—low coolant level causes overheating; contaminated coolant (e.g., oil, debris) clogs cooling channels, requiring system flushing.
  • Heatsink Cleaning: Clean the unit’s heatsink annually (with VFD de-energized) using compressed air (low pressure, ≤50 psi)—dust accumulation reduces heat dissipation efficiency by up to 40%.
  • IGBT Health Check: Use ABB Service Tool to monitor IGBT junction temperature monthly—abnormal temperature rises (e.g., >70℃ at 50% load) indicate IGBT degradation, requiring unit replacement.
• Parameter Configuration:
  • Only ABB Software: Configure unit parameters (e.g., current limits, fault thresholds) via ABB Drive Composer Pro—unauthorized parameter changes (e.g., increasing peak current duration) bypass protection mechanisms, leading to component failure.
  • Backup Configuration: Back up VFD and unit parameters to a secure location aft

The structure and details of the product：

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